With CO2 emissions of only 95 g/km, Nissan’s all-new Micra DIG-S has one of the cleanest petrol engines in the world. To achieve this, the Japanese firm's engineers used a 1.2-liter three-cylinder unit fitted with a supercharger and direct injection, which can be coupled either to a manual transmission or a CVT automatic gearbox. The powerplant uses the Miller cycle and with a peak output of